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131243030432212 = 222311719121730069
BaseRepresentation
bin11101110101110101100110…
…001101010100100111010100
3122012200201012110001211201211
4131311311212031110213110
5114200241211242312322
61143044114342031204
736433665433066606
oct3565654615244724
9565621173054654
10131243030432212
11388aa9471a8996
1212877941418504
13583021aa005aa
14245a2a753d176
151028debd21b77
hex775d663549d4

131243030432212 has 24 divisors (see below), whose sum is σ = 239681638627200. Its totient is φ = 62763049220256.

The previous prime is 131243030432203. The next prime is 131243030432231. The reversal of 131243030432212 is 212234030342131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59786887 + ... + 61943182.

It is an arithmetic number, because the mean of its divisors is an integer number (9986734942800).

Almost surely, 2131243030432212 is an apocalyptic number.

It is an amenable number.

131243030432212 is a deficient number, since it is larger than the sum of its proper divisors (108438608194988).

131243030432212 is a wasteful number, since it uses less digits than its factorization.

131243030432212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121741815 (or 121741813 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 131243030432212 its reverse (212234030342131), we get a palindrome (343477060774343).

The spelling of 131243030432212 in words is "one hundred thirty-one trillion, two hundred forty-three billion, thirty million, four hundred thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 23 46 92 11719 23438 46876 269537 539074 1078148 121730069 243460138 486920276 2799791587 5599583174 11199166348 1426554678611 2853109357222 5706218714444 32810757608053 65621515216106 131243030432212